If Krusader is installed, the krarc protocol is available and Dolphin may use it to open ZIP archives. In this case, when the user goes back to a parent folder outside the archive, a "file or folder does not exist" error will be returned. This can be fixed by including krarc in the URL scheme check inside the KUrlNavigator::setLocationUrl method.
BUG: 386448
FIXED-IN: 5.58